The WEST-D is a medical professional tool that provides an evaluation for reduced tactile sensation on the face, loss of protective sensation of the foot and more! This product is an ideal instrument for those testing at various locations, and can easily be transported safely and securely. The West-D Monofilaments included are 0.025, 0.07, 0.5, 2 and 10. Color coded and clearly marked for precise and accurate use.